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Finding the Fourth Proportional to 665,655.10, 998,482.65 and 192,355.90

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Solution

The fourth proportional to 665,655.10, 998,482.65 and 192,355.90 is: 288,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,655.10 : 998,482.65 = 192,355.90 : x
  2. Step 2: Convert to fraction form
    665,655.10/998,482.65 = 192,355.90/x
  3. Step 3: Cross multiply
    665,655.10x = 998,482.65 × 192,355.90
  4. Step 4: Simplify right side
    665,655.10x = 192,064,028,775.14
  5. Step 5: Solve for x
    x = 192,064,028,775.14/665,655.10
  6. Step 6: Final answer
    x = 288,533.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.